Tag: West Nile Virus

Bilingual report — Local bird tests positive for West Nile Virus in Ventura County

VENTURA — The Ventura County Environmental Health Division (Division) has received confirmation from the California Department of Public Health that a bird collected on May 12th, 2026, from the city of Ventura has tested positive for West Nile Virus (WNV). WNV is established in Ventura County and additional WNV positives are expected. This is the first detection of WNV activity this year in Ventura County. Ventura County Public Health confirms that no human cases have been identified to date in 2026.

The Division monitors and controls mosquito breeding sources throughout Ventura County. All mosquito breeding sources in the area where the bird was collected will be inspected and treated if evidence of mosquito breeding is observed.

Bilingual report — Local Bird tests positive for West Nile Virus in Ventura County

VENTURA — On September 5, 2025 the Ventura County Environmental Health Division (Division) received confirmation from the California Department of Public Health that a bird collected during the fourth week of August (8/25) from the Simi Valley area tested positive for West Nile Virus (WNV). WNV is established in Ventura County and additional WNV positives are expected. This is the first detection of WNV activity this year in Ventura County.

Bilingual report — Bird Tests Positive For West Nile Virus

On September 13, 2022, the Ventura County Environmental Health Division (Division) received confirmation from the California Department of Public Health that a bird collected during the fourth week of August from the City of Simi Valley area tested positive for West Nile Virus (WNV). This is the first bird collected in 2022 to test positive for WNV in Ventura County. There are no confirmed human cases at this time.

WNV is considered endemic, so we can expect the virus to stay in our environment.